First small block SS was built in September 66, they were available right from the start of production. L35 Big blocks came about during January of 67, L78's came about later around March of 67. L34s were never available in a 67 Camaro.

Sorry to mislead. I meant serial number LA SS car. This is the car that sold millions of teenagers on Camaros, including me. They tested it every month with differant modifications and drag tests, first as a 3650 then puttting in a 396. Finally admitted it was ALL faked when the 50th anniversay HR mag came out. The "396" engine they tested was really a factory reworked 427, etc. All the times were lies.